tested to wp 5.9

added query ref and HTTPS

* Added query ref to the end of the URL which preserves the settings set by SSP (Thanks @TB2020 & @Legendany)
* Added option for Blubrry HTTP or HTTPS tracking URL. Default: HTTPS (Thanks @TB2020)

updated readme

updated version

0.1.6

works with WP 5.6

fixed blubrry

Added Blurbrr and http and S options

Tweaked RSS refresh and migrated to GitHub

create_function() is deprecated and updated to Anonymous Function - b…

…umped version

corrected CI